
At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation.
Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.
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Design, coding, enhancements, and bug fixing in DNS and related areas.
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Bring up new ideas to improve the day-to-day challenges in the design/functionality.
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Should be able to provide technical direction to the ongoing and future projects in the team.
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Keep the product vulnerability free by uplifting/fixing the open issues.
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Build tools and infrastructure to improve these F5’s components and features.
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Set an example of software design and development innovation and excellence.
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Research, investigate and define new areas of technology to enhance existing or new products directions
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Evaluate performance of products to fine-tune, and refactor the design as per the requirements to scale up.
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Must have worked in security and related areas.
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Document software designs via functional specifications and other design documents
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Conduct presentations internal and external, mentoring the team members
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May participate in the hiring and onboarding process
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Collaborate with team members and technical leads
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Responsible for upholding F5’s Business Code of Ethics and for promptly reporting violations of the Code or other company policies.
Knowledge, Skills and Abilities:
Essential
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Deep understanding of data structures & algorithm.
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Expert in C, C++ with hands-on experience
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Fair understanding of scripting languages Python and JavaScript
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Expertise in Linux user-level programming and exposure to Linux networking stack.
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Good understanding on TCP/IP concepts.
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Proven experience with security standards.
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Excellent analytical and problem-solving skills.
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Good understanding of Network security and DNS modules
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Excellent Understanding of networking technologies and OS internals.
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Prior experience in leading and delivering project/programs involving multiple teams.
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Prior experience of leading and mentoring senior engineers to deliver critical projects.
Nice-to-have
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Prior experience developing DNS and related modules is a Plus.
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Good understanding of network protocols like TCP, UDP, HTTP, SSL, DNS, FTP etc.
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Experience with CI/CD (git, pipeline etc.).
Qualifications
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Requires a minimum of 15+ years of related experience with a Bachelor of Engineering in ECE/Computers or similar years’ experience with ME/MTech in ECE/Computers.
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Excellent organizational agility and interpersonal skills throughout the organization.
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Ability to work flexible hours for better collaboration with international teams.
F5 Inc. is an equal opportunity employer and strongly supports diversity in the workplace. The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive, and responsibilities and requirements are subject to change.

About F5 Networks
About
F5 is an industry leader in Application Delivery Networking and Security, has over 8,000 employees worldwide At F5, we make apps faster, smarter, and safer…from anywhere. Come work within the F5 BIGIP Next Base Operating System team in an exciting, fast past environment charting the course for F5’s future. As a contributing member of the team, you will be integrated into cross functional working project teams in our Product Development organization. Build services that are performant, reliable, secure, and scalable within a company known for our excellent culture. If you enjoy providing quality solutions while keeping a focus on high availability, scalability, maintainability, and security then you are the Software Engineer that we would like to have join our team.
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Job Details
- Job Title: Lead Software Engineer - Java, Python, API Development
- Industry: Global digital transformation solutions provider
- Domain - Information technology (IT)
- Experience Required: 8-10 years
- Employment Type: Full Time
- Job Location: Pune & Trivandrum/ Thiruvananthapuram
- CTC Range: Best in Industry
Job Description
Job Summary
We are seeking a Lead Software Engineer with strong hands-on expertise in Java and Python to design, build, and optimize scalable backend applications and APIs. The ideal candidate will bring deep experience in cloud technologies, large-scale data processing, and leading the design of high-performance, reliable backend systems.
Key Responsibilities
- Design, develop, and maintain backend services and APIs using Java and Python
- Build and optimize Java-based APIs for large-scale data processing
- Ensure high performance, scalability, and reliability of backend systems
- Architect and manage backend services on cloud platforms (AWS, GCP, or Azure)
- Collaborate with cross-functional teams to deliver production-ready solutions
- Lead technical design discussions and guide best practices
Requirements
- 8+ years of experience in backend software development
- Strong proficiency in Java and Python
- Proven experience building scalable APIs and data-driven applications
- Hands-on experience with cloud services and distributed systems
- Solid understanding of databases, microservices, and API performance optimization
Nice to Have
- Experience with Spring Boot, Flask, or FastAPI
- Familiarity with Docker, Kubernetes, and CI/CD pipelines
- Exposure to Kafka, Spark, or other big data tools
Skills
Java, Python, API Development, Data Processing, AWS Backend
Skills: Java, API development, Data Processing, AWS backend, Python,
Must-Haves
Java (8+ years), Python (8+ years), API Development (8+ years), Cloud Services (AWS/GCP/Azure), Database & Microservices
8+ years of experience in backend software development
Strong proficiency in Java and Python
Proven experience building scalable APIs and data-driven applications
Hands-on experience with cloud services and distributed systems
Solid understanding of databases, microservices, and API performance optimization
Mandatory Skills: Java API AND AWS
******
Notice period - 0 to 15 days only
Job stability is mandatory
Location: Pune, Trivandrum
Location: Bengalore, India, Exp: 3-5 Yrs
Backend Developer (Golang) - Trading & Fintech
About Us:
Tradelab Technologies Pvt Ltd is not for those seeking comfort—we are for those hungry to make a mark in the trading and fintech industry. If you are looking for just another backend role, this isn’t it. We want risk-takers, relentless learners, and those who find joy in pushing their limits every day. If you thrive in high-stakes environments and have a deep passion for performance driven backend systems, we want you.
What we expect:
You should already be exceptional at Golang. If you need hand-holding, this isn’t the place for you.
You thrive on challenges, not on perks or financial rewards.
You measure success by your own growth, not external validation.
Taking calculated risks excites you—you’re here to build, break, and learn.
You don’t clock in for a paycheck; you clock in to outperform yourself in a high-frequency trading environment.
You understand the stakes—milliseconds can make or break trades, and precision is everything.
What you will do:
Develop and optimize high-performance backend systems in Golang for trading platforms and financial services.
Architect low-latency, high-throughput microservices that push the boundaries ofspeed and efficiency.
Build event-driven, fault-tolerant systems that can handle massive real-time data streams.
Own your work—no babysitting, no micromanagement.
Work alongside equally driven engineers who expect nothing less than brilliance.
Must have skills:
Learn faster than you ever thought possible.
Proven expertise in Golang (if you need to prove yourself, this isn’t the role for you).
Deep understanding of concurrency, memory management, and system design.
Experience with Trading, market data processing, or low-latency systems.
Strong knowledge of distributed systems, message queues (Kafka, RabbitMQ), and real-time processing.
Hands-on with Docker, Kubernetes, and CI/CD pipelines.
A portfolio of work that speaks louder than a resume.
Nice-to-Have Skills:
Past experience in fintech, trading systems, or algorithmic trading.
Contributions to open-source Golang projects.
A history of building something impactful from scratch.
Understanding of FIX protocol, WebSockets, and streaming APIs.
Why Join Us?
Work with a team that expects and delivers excellence.
A culture where risk-taking is rewarded, and complacency is not.
Limitless opportunities for growth—if you can handle the pace.
A place where learning is currency, and outperformance is the only metric that matters.
The opportunity to build systems that move markets, execute trades in microseconds, and redefine fintech. This isn’t just a job—it’s a proving ground. Ready to take the leap? Apply now.
Required Technologies:
o Excellent understanding of Ruby, Ruby on Rails, CSS3
o Able to communicate well with others on technologies bases
o Working knowledge with Rspec is good to have.
o Have previous experience building features in production applications.
o Good Knowledge of SQL
Good To Have
o Basics of GIT and GIT LAB
o PostgreSQL
Able to understand frontend JS frameworks
Description
We are looking for a Full Stack Developer to produce scalable software solutions. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment. As a Full Stack Developer, you should be comfortable with both front-end and back-end coding languages, development frameworks and third-party libraries. You should also be a team player with a knack for visual design and utility. If you’re also familiar with Agile methodologies, we’d like to meet you.
Responsibilities
- Work with development teams and product managers to ideate software solutions
- Design client-side and server-side architecture
- Build the front-end of applications through appealing visual design
- Develop and manage well-functioning databases and applications
- Write effective APIs
- Test software to ensure responsiveness and efficiency
- Troubleshoot, debug and upgrade software
- Create security and data protection settings
- Build features and applications with a mobile responsive design
- Write technical documentation
- Work with data scientists and analysts to improve software
Requirements
- Proven experience as a Full Stack Developer or similar role
- Experience developing desktop and mobile applications
- Familiarity with common stacks
- Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
- Knowledge of multiple back-end languages (e.g. PHP, Java, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
- Familiarity with databases (e.g. PostgreSQL, MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
- Excellent communication and teamwork skills
- Great attention to detail
- Organizational skills
- An analytical mind
- Degree in Computer Science, Statistics or relevant field
REQUIREMENTS
- 5+ years of non-internship professional software development experience
- 1+ years of exposure to the architecture and design (design patterns, security, reliability and scaling) of new and current systems.
- Bachelors/Masters degree in computer science or other related fields
- Programming experience with at least one modern language such as Java or Python including object-oriented design
- A solid foundation in computer science, with strong competencies in data structures, algorithms, and software design.
- Proven ability to take initiative and dive into new areas of technology.
- Passion for learning, analysing technology trade-offs and shipping products.
- Knowledge on SQL, NOSQL databases and AWS deployments is a plus
- Strong sense of ownership, urgency and drive
- Ability to work well with people and be both highly self motivated and motivating
- Must be independent and comfortable in a fast paced, ambiguous and often multi-directional work environment
JOB RESPONSIBILITIES
- You will build cutting-edge secure and scalable systems by writing simple and efficient code.
- You will push your design and architecture limits for new product development.
- You will be the owner of your feature and work directly with product teams to drive customer impact.
- You will ensure that the systems you oversee are secure, fault-tolerant and are performing reliably at high volumes.
- Constantly look at possibilities to improve the overall functioning of the product.
- You possess a strong desire to learn and contribute solutions and ideas to a broad team
- You are independent and comfortable in a fast paced, ambiguous and often multi-directional work environments
- You will manage multiple tasks and use sound judgment when prioritizing
- You can collaborate with globally-located cross functional team in building customer-centric products
- You will analyze existing software implementations to identify areas of improvement and provide estimates for implementing new features
- Full stack experience is a plus
- Understanding of complete SDLC and Agile methodologies
- Domain expertise in Financial Services, Banking or Payments
- Code Quality –Code Hygiene (Coverage, Complexity, Usability)
- Collaboration –Strong peer review standards
- Work with stakeholders and fellow developers.
- Design and implement Python code using the Django framework.
- Identify and fix bottlenecks that may arise from inefficient code.
- Identify and fix software bugs.
- Create a wide variety of unit tests to verify the functionality of software.
- Manage the security of the platform.
- Write detailed documentation around the code.
- Knowledge of front end languages.
Responsibilities
Writing reusable, testable, and efficient code
Design and implementation of low-latency, high-availability, and performant applications
Integration of user-facing elements developed by front-end developers with server-side logic
Implementation of security and data protection
Skills And Qualifications
Developing an end-to-end application with the latest technologies like python, Django, MySQL and using Python Libraries like Sympy, Numpy, Scipy.
Working with front-end web development technologies like HTML, CSS, Bootstrap, JavaScript, Ajax, Jquery, etc.
Analyze and customize the source code as per business requirements.
Integrate the day-to-day develop code with a version control tool (we use git and GitHub)
Co-ordinate in development, deployment activities.
Expert in Python, with knowledge of at least one Python web framework (such as Django, Flask, etc depending on your technology stack)
Familiarity with some ORM (Object Relational Mapper) libraries
Able to integrate multiple data sources and databases into one system
Understanding of the threading limitations of Python, and multi-process architecture
Good understanding of server-side templating languages (such as Jinja 2, Mako, etc depending on your technology stack)
Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
Understanding of accessibility and security compliance (depending on the specific project)
Knowledge of user authentication and authorization between multiple systems, servers, and environments
Understanding of fundamental design principles behind a scalable application
Familiarity with event-driven programming in Python
Understanding of the differences between multiple delivery platforms, such as mobile vs desktop, and optimizing output to match the specific platform
Able to create database schemas that represent and support business processes
Strong unit test and debugging skills
Proficient understanding of code versioning tools (such as Git, Mercurial or SVN)
Design robust, scalable, and secure features.
Contribute to all phases of the development lifecycle.
Sincere to work and can take ownership.
Requirements
Proven work experience as a Ruby on Rails developer.
Proven work experience in software development.
Demonstrable knowledge of front-end technologies such as JavaScript, HTML, CSS and JQuery.
Experience developing highly interactive applications.
A firm grasp of object-oriented analysis and design.
Passion for writing great, simple, clean, efficient code.
Good knowledge of relational databases.
Working knowledge of NoSQL databases.
Good communication (English) and a problem-solving attitude.
Bachelor degree in Computer Science, Engineering or in an equivalent field.






